1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/Script-gc-01.js b/js/src/jit-test/tests/debug/Script-gc-01.js
new file mode 100644
index 000000000..5d71b1e39
--- /dev/null
+++ b/js/src/jit-test/tests/debug/Script-gc-01.js
@@ -0,0 +1,26 @@
+// Debugger.Script instances with live referents stay alive.
+
+var N = 4;
+var g = newGlobal();
+var dbg = new Debugger(g);
+var i;
+dbg.onDebuggerStatement = function (frame) {
+    assertEq(frame.script instanceof Debugger.Script, true);
+    frame.script.id = i;
+};
+
+g.eval('var arr = [];')
+for (i = 0; i < N; i++)  // loop to defeat conservative GC
+    g.eval("arr.push(function () { debugger }); arr[arr.length - 1]();");
+
+gc();
+
+var hits;
+dbg.onDebuggerStatement = function (frame) {
+    hits++;
+    assertEq(frame.script.id, i);
+};
+hits = 0;
+for (i = 0; i < N; i++)
+    g.arr[i]();
+assertEq(hits, N);